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TLS Online TPP Program

#Question id: 5029

Which of the following was the least likely factor causing the Cambrian explosion?

#SCPH28 | Zoology

  1. the emergence of predator-prey relationships between animals

  2. the accumulation of diverse adaptations, such as shells and different modes of locomotion

  3. the movement of animals onto land

  4. the evolution of Hox genes that controlled development

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TLS Online TPP Program

#Question id: 3924

#SCPH28 | Zoology

Characteristics of ligands involved in transcription include:
TLS Online TPP Program

#Question id: 3925

#SCPH28 | Zoology

Constitutive genes
TLS Online TPP Program

#Question id: 3926

#SCPH28 | Zoology

Positive regulation of a gene requires __.
TLS Online TPP Program

#Question id: 3927

#SCPH28 | Zoology

An operon is __
TLS Online TPP Program

#Question id: 4123

#SCPH01 Biochemistry

A certain bacterial mRNA is known to represent only one gene and to contain about 800 nucleotides.  If you assume that the average amino acid residue contributes 110 to the peptide molecular weight, the largest polypeptide that this mRNA could code for would have a molecular weight of about:
TLS Online TPP Program

#Question id: 4123

#SCPH05 I Biotechnology

A certain bacterial mRNA is known to represent only one gene and to contain about 800 nucleotides.  If you assume that the average amino acid residue contributes 110 to the peptide molecular weight, the largest polypeptide that this mRNA could code for would have a molecular weight of about: